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small fix with ext mem write (no game uses it tho)

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This commit is contained in:
Michaël Banaan Ananas 2013-06-02 21:40:31 +00:00
parent 0e35391d20
commit 431d9dad2e
1 changed files with 3 additions and 1 deletions
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4
src/emu/sound/ymz280b.c
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@ -649,6 +649,8 @@ void ymz280b_device::device_start()
void ymz280b_device::device_reset()
{
m_ext_mem_enable = 0;
/* initial clear registers */
for (int i = 0xff; i >= 0; i--)
{
@ -823,11 +825,11 @@ void ymz280b_device::write_to_register(int data)
case 0x87: /* RAM write */
if (m_ext_mem_enable)
{
m_ext_mem_address = (m_ext_mem_address + 1) & 0xffffff;
if (!m_ext_write_handler.isnull())
m_ext_write_handler(m_ext_mem_address, data);
else
logerror("YMZ280B attempted RAM write to %X\n", m_ext_mem_address);
m_ext_mem_address = (m_ext_mem_address + 1) & 0xffffff;
}
break;